Rust and grease remover



252. cowosmous. VI 1 4:

Patented June 3, 1924.-

UNITED STATES PATENT orrlca.

GLEN LENARDO WILLIAMS, OF DETROIT,

LIAIS COIPANY, O1 DETROIT, MIQHIGAN,.

A CORPORATION OF MICHIGAN.

RUST AND GREASE BEHOVER.

1W0 Drawing.

To all whom it may concern:

Be it known that I, GLEN LENARDO W11.- LIAMs, a citizen of the United States of America, residin in the city of Detroit, in' the county of ayne, 'in the State of ichi an, have invented certain new and useful mprovements in a Rust and Grease Remover, of which the following is a specification.

The object of my invention is to provide an efiicient rust and grease remover, which, when applied to a surface of iron or steel rusted and covered with grease or oil, wili act upon the rust and u on the grease or oil in such manner that t washed or wiped ofi, leaving the surface clean. v

To illustrate the manner in which. the liquid constitutingmy discovery is prepared, a gallon of water is placed in a receptacle and about two pounds of soluble sodium or potassium salts are added thereto. These salts may be the phosphates, chlorates, .bromates, nitrates, or any other salts soluble in water,

a single salt or a combination of salts being used, as desired. Suflicient mineral acid is used to make the solution of acid reaction, the salts are completely dissolved, and the solution made to a stren h of about 8 to 15 B., the amount of t e salts and acids used being varied according to needs.

Separately, about a int of an alcohol from any group of alco ols, but preferably furfuryl, as being less inflammable than others, is treated with about a half of'a pint of glacial acetic acid, butyric acid, or lactic acid, singly or in any combination, with the rise of heat, to form the corres onding ester or esters as furfur'yl acetate or utyrate, and the ester or esters are then added to the first solution. To the combined solutions is added. about an ounce of molasses, or sugar solution, or an equivalent carbohy rate, as starch.

The acid mixture is neutralized by manganese borate, such as is used in hardening linseed oil. This neutralizes the acid or acids in the solution and will form manganese and boron salts which will act on oils used in the paints subsequently used u on the metal, to harden the primers. en paint is sprayed or otherwise applied to the cleaned surface, there will be enough iron ey may readily be sulphate, manganese sulphate, and boron ear MICHIGAN, ASSIGNOR TO RANDALL WIL- salts on the surface to help harden the oil in the riming coat.

T e acetates, butyrates, or lactates of furfuryl or other alcohols will remove the grease and convert the iron rust into compounds which may readily be, removed; Beneath moldings or in hinge crevices in automobile bodies, the iron rust and grease will be converted into substances which will dry out with the aid of heat, and will be favorableto paint on the metal surface instead of in'kurious.

t will be obvious that the pro ortions given above will be varied to suit ifierent ingredients and that chemical equivalents may be substituted for the substance recited without departing from the principles of the invention. Themetallic salts used may be practically any water-solublesalt or salts of metals either electro-positive or electro-negative to iron, though those electronegative to iron are more desirable.

I claim:

1. A rust remover comprising a solution resulting from the mixture of a salt of an alkali metal, a mineral acid, an alcoholic ester, borate of manganese, and molasses.

2. A rust remover-comprising a solution resulting from the mixture of a water-soluble salt of a metal electro-negative to iron, sulphuric acid, furfuryl acetate, borate of manganese, molasses, and water;

3. A rust remover comprising a' solution resultin from the mixture of a water-soluble meta lic salt, a mineral acid, an alcoholic ester of an organic acid, borate of manganese, and a carbo-hydrate.

4. The process of making a rust remover which consists in preparing an aqueous solution of a salt of an alkali metal, acidifying the solution with a mineral acid,- adding thereto a mixture of an alcohol with an organic acid, then adding a carbo-hydrate, and

neutralizing the solution with manganese borate.

In testimony whereof, I afiix my signature.

Si ed on the 5th day of July, 1922, in

the city of Detroit, in the county of Wayne, 

